Door



May 31, 1938. A, :1 R TT 2,118,942

DOOR

Filed July 13, 1932 5 Sheets-Sheet l 7 I m 7 n M M E M n m .u M. M Q n. m 4.5!. V m k h 0 2 0 Jr; Z Z W 3 5 E 2 m g 3 wwiwiwa l 1 $1 IIIJ |I...||||| INVENTOR ARTHURT. PRESCOTT.

WLTTORNE 8 (3' May 31, 1938. A. 'r. PRESCOTT DOOR Filed July 15,1932 3 Sheets-Sheet 2 INVENTOR ARTH UR T. PRzscoTT.

r llllull-Illl IIIIL MJL ATTORNEYS I May 31, 1938. A. 'r. PRESCOTT DOOR Filed July 13, 1932 3 Sheets-Sheet 3 INVENTOR ARTHUR T. PRESCOTT.

JIM ATTORNEYS Patented May 31, 1938 PATENT OFFICE DOOR Arthur T. Prescott, East Orange, N. J assignor to Ralph E. Ogden, Mountainville, N. Y.

Application July 13, 1982, Serial No. 622,172

26 Claims.

This invention relates to improvements in doors and particularly to such doors as are used to close large doorway openings in pier sheds, warehouses and the like.

Its object is to provide with a sectional door which is adapted for opening a part or all of the doorway, an independently movable lower section which may be raised with the adjacent section to open the doorway, or which may be left in position to form a barrier across the lower part of the doorway when the other sections are moved to open the rest of the doorway. The invention is adaptable to sectional doors of the turn-over type which are easily operated, occupy but little space when passing through the opening and closing movement and are readily used for opening the lower part only of the doorway.

Further objects of the invention will appear in the following description.

Fig. l is a sectional end elevation of a sectional turn-over door constructed to embody this invention, the door sections being shown in their closed positions;

Fig. 2 is a front elevation of the lower part of the structure shown in Fig. 1;

Fig. 3 is a side elevation of the latch mechanism in its released position;

7 Figs. 4 and 5 are sectional plan views taken on the lines 44 and 55 of Fig. 1 respectively;

Fig. 6 is a sectional end elevation of the parts illustrated in Fig. 1 in a partly open position;

Fig. '7 is a sectional end elevation showing the lower door section in its barrier forming position and the other door sections raised to a higher elevation than that in which they are shown in Fig. 6;

Fig. 8 is a sectional end elevation of this invention applied to a different type of door;

Fig. 9 is a similar view showing a still further modification;

Fig. 10 is afront elevation of a part of the lower portion of the structure shown in Fig. 9;

In the drawings, Ill designates an upper door section which is supported by links H pivoted to the sides of the upper door section at l2 and to points it above the door header l4. l5 are guides on opposite edges of the upper door section. Rollers I6 are mounted on the lower corners of this upper door section, to run on the vertical lintels ll of the doorway.

2|] is an intermediate door section which is adapted to be raised into the guides !5 of the upper door section. Struts 2| extend downwardly from opposite sides of this intermediate door section and its lower edge is grooved, as at 22.

When the door is fully closed, the struts 2| run down into stationary guides 23 at opposite sides of the doorway. 24 designates a lifting chain or cable which runs from a point 25 on the struts 2|, over a sheave 26 above the door header to a counterweight 21. A similar chain or cable is afiixed to the opposite part of the intermediate door section.

The lower endof struts 2| are the only parts of the intermediate door section which have a vertical movement throughout the opening and closing of the door and the lifting chains or cables 24 are connected thereto at the points 25 near their lower ends so that these chains or cables have substantially no lateral movement. These struts 2| of the intermediate door section extend down to the threshold of the door opening when thedoor is closed. Consequently, they may serve to arrest the downward movement of this intermediate door section and to support its weight when the door is closed.

3|] designates a lower door or barrier section, between the struts 2|. Its upper edge is provided with a tongue 3| which fits into the groove 22 in the upper edge of the intermediate door section. 32 is a lifting chain or cable which runs from a bracket 33 afiixed to this barrier section over a sheave 34 above the door header to a counterweight 35. The barrier section maybe of light construction as it is not depended upon to support the intermediate door section.

46 is a rod transversely mounted across the lower part of the intermediate door section. Latches 4| are affixed to this rod, spaced apart as shown in Fig. 2. These latches are pressed to the positions in which they are shown in Figs. 1, 6 and 7 by a spring 42 against stops 43. 44 is a lever also affixed to rod 40 by which the latches may be moved against the action of the spring to the position in which they are shown in Fig. 3 at 4|A. I-Iooks 45 are aflixed to the barrier section in line with the latches 4|.

Before specifically describing the structures shown in the other figures of the drawings, we Will point out the operation of the parts so far described. The intermediate door section 20 may be raised by an upwardpull on the chain or cable 24 from the position in which it is shown in Fig. 1 to that in which it is shown in Fig. 6 where the movement of the intermediate door section relative to the upper door section is arrested by a stop l9 across the struts 2| coming in contact with thelower edge of the upper door section. The upwardmovement will cause latches 4| to engage the hooks .45 and cause the barrier section f to be raised with the intermediate door section so that the three door sections will occupy the Fig. 6 positions. A further upward movement of the chain or cable 24 will cause the upper door section and the section or sections which overlie it to swing inwardly on the links I l to the position shown in Fig. 7 and finally to a substantially horizontal position. During these movements the counterweights 21 and 35 will keep the parts balanced.

This operation, when the intermediate and barrier sections are locked together, is substantially the same as and has the advantages of a turnover door, such as is shown in Patent No. 973,691, issued to the late J. Edward Ogden, October 25, 1910.

According to this invention, the latches 4| may be released, as shown in Fig. 3, before the lifting operation is started so that the intermediate door section 29 will be raised without moving the lower door section. The latter will be left in the guides 23, as shown in Fig. '7 to form a barrier across the doorway. The guides 23 thus act as supports for the barrier section when the door is in closed position or when the barrier section is left in closed position and the rest of the door is open as in Fig. 7. This is particularly desirable in pier sheds where people are guarded by the barrier thus formed by the lower door section. In the latter operation the counter- Weight 21 will balance the moving parts. When the barrier section 30 is raised, the counterweight 35 assists in balancing the moving parts.

In the structure shown in Fig. 8 the upper, intermediate and barrier sections [A, 20A and 30A and their interconnections are similar to those shown in the preceding figures, but in this case the upper door section is hinged to the lintel, as at 50 and it, with the intermediate door or with the intermediate and the barrier sections on it may be swung, as indicated by broken lines to the fully open position.

The structure shown in Figs 9 and 10 differs from that shown in Fig. 8 in that the section 293 which slides on the upper section IDA, extends down to the threshold of the doorway and the section 363 overlaps section 203 except when it is left behind as a barrier. In this construction the section 30B is wider than section 20B and rests in stationary guides 23A when it is in its lowermost position. In its upper edge are slots 36 which register with pins 28 projecting from the door section 203 to hold these parts in lateral alinement.

The operation of the arrangements shown in Figs. 8 to 10 is obvious from the former description. Several modifications have been illustrated and described to show that the invention is capable of wide modification. I, therefore, intend no limitations other than those imposed by the appended claims.

What I claim is:

1. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, means for causing the sliding movement of the intermediate section in closing to lock the barrier section to itself, and manual means for releasing said lock.

2. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, means for causing the sliding movement of the intermediate section in closing to lock the barrier section to itself, manual means for releasing said look, a counterweight connected to said struts, and a counterweight connected to said barrier section.

3. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with the hook, and manual means for moving the latch out of its hook engaging position.

4. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier to close the space between said struts, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with the hook, manual means for moving the latch out of its hook engaging position, a counterweight connected to said struts, and a counterweight connected to said barrier section.

5. A door comprising an upper section,'links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, a latch on the face of said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, a tongue on the upper edge of the barrier section, a groove in the lower edge of the intermediate section, a hook on the face of the barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with said hook, manual means for moving the latch out of its hook engaging position, a counterweight connected to the lower part of said struts, and a counterweight connected to the lower part of said barrier section.

6. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links with the upper section in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, stationary guides at the edges of the door opening for receiving the struts on the edges of the intermediate section, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass-said latch into engaging position with the hook, and means for moving the latch out of its hook engaging position.

'7. A door comprising an upper section, links connecting the edges thereof to fixed points above said section, an intermediate section arranged to slide on the upper section to overlie the same and to be swung by said links. with the upper section in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section to close the space between said struts, stationary guides at the edges of the door opening for receiving the struts on the edges of the intermediate section, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with the hook, manual means for moving the latch out of its hook engaging position, a counterweight connected to said struts, and a counterweight connected to said barrier section.

8. A door comprising an upper section, an intermediate section arranged to slide on the upper section, to overlie the same, means for swinging said upper and intermediate sections together in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section below said intermediate section to close the space between the struts, stationaryguides at the edges of the door opening for receiving the struts on the edges of the intermediate section, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with the hook, and means for moving the latch out of its hook engaging position.

9. A door comprising an upper section, an intermediate section arranged to slide on the upper section, to overlie the same, means for swinging said upper and intermediate sections together in opening and closing, a latch on said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section below said intermediate section to close the space between the struts, stationary guides at the edges of the door opening for receiving the struts on the edges of the intermediate section, a hook on said barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with the hook, manual means for moving the latch out of its hook engaging position, a counterweight connected to said struts and a counterweight connected to said barrier section.

10. A door comprising an upper section, an intermediate section arranged toslide on the upper section to overlie the same, means for swinging said upper and intermediate sections together in opening and closing, struts extending downwardly from the edges of the intermediate section, lifting means attached to the lower ends of said struts at points having substantially vertical movements, a barrier section, means for supporting said barrier section below the intermediate section across the door opening, and means for selectively engaging the barrier section to the intermediate section.

11. A door comprising an upper section, an intermediate section arranged to slide on the upper section to overlie the same, means for swinging said upper and intermediate sections together in opening and closing, struts extending downwardly from the edges of the intermediate section, lifting means attached to the lower ends of said struts at points having substantially vertical movements, a barrier section, means for supporting said barrier section below the intermediate section across the door opening, means for causing the sliding movement of the intermediate section in closing to lock the barrier section to itself, and manual means for releasing said lock.

12. A door comprising an upper section, an-intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, a barrier section, means for supporting said barrier section below the intermediate section, and means for selectively engaging the barrier section with the intermediate section to cause it to slide therewith on the upper section to overlie the lower portion thereof. i

13. A door comprising an upper section, an intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, struts extending downwardly from the edges of the intermediate section, lifting means attached to the lower ends of said struts at points having substantially vertical movements, a barrier section, means for supwiththe intermediate section to cause it to slide therewith on the upper section to overlie the lower portion thereof.

14. A door comprising an upper section, an intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, struts extending downwardly from the edges of the intermediate section, a counterweight connected to the lower ends of said struts at points having substantially vertical movements, a barrier section, means for supporting said barrier section below the intermediate section across the door opening, and means for selectively engaging the barrier section with the intermediate section to cause it to slide therewith on the upper section to overlie the lower portion thereof.

15. A door comprising an upper section, an intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, a barrier section, means for supporting said barrier section below the intermediate section, a tongue and groove connection on adjacent edges of the barrier and intermediate sections, a hook on the face of the barrier section, means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with said hook whereby the initial upward movement of the intermediate section will cause the latch and hook to engage without separatingsaidltongue and groove edges and the continued upward movement of the intermediate section will raise the barrier section to a position overlying the lower portion of the upper section.

16. A door comprising an upper section, an intermediate section arranged to slide on the upper section to overlie the same, means for swinging said upper and intermediate sections together in opening and closing, a latch on the face of said intermediate section, struts extending downwardly from the edges of said intermediate section, an independent barrier section below said intermediate section, a tongue and groove construction on adjacent edges of the barrier and intermediate sections, a hook on the face of the barrier section, and means for causing the sliding movement of the intermediate section in closing to pass said latch into engaging position with said hook whereby the initial upward movement of the intermediate section will cause the latch and hook to engage without separating said tongue and groove edges.

17. A door comprising an upper section, an intermediate section arranged to slide on the upper section to overlie the same, struts extending downwardly from the edges of the intermediate section, lifting means attached to the struts, a barrier section, means for supporting said barrier section below the intermediate section across the door opening, and means for moving the barrier section onto the upper section.

18. A door comprising an upper section, an intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, a barrier section, means for supporting said barrier section below the intermediate section, and means for moving the barrier section to cause: it to slide onto the upper section to overlie the lower portion thereof.

19. A door comprising an upper section, an intermediate section arranged to slide on the upper section and to overlie the upper portion thereof, means for swinging said upper and intermediate sections together when the intermediate section overlies the upper section, a barrier section, means for supporting said barrier section below the intermediate section, means for moving the barrier section to cause it to slide onto the upper section to overlie the lower portion thereof, and a counterweight for the barrier section.

20. A door comprising an upper section arranged to be swung in opening and closing, an intermediate section arranged to slide on the upper section to overlie the same, struts extending downwardly from the edges of the intermediate section, lifting means attached to the lower ends of said struts at points having substantially vertical movements, a barrier section, means for supporting said barrier section below the intermediate section across the door opening, and means for lifting the barrier section onto the upper section.

21. A door comprising an upper section, an intermediate section and a barrier section below and detachably connected to the intermediate section, said intermediate and barrier sections being movable together to a position overlying said upper section, said upper and overlying sections being movable as a unit laterally and inwardly, counterweighting means connected to said intermediate section and operable successively to aid in lifting the intermediate section to a position overlying the upper section and to raise and move said sections laterally to open position, and separate counterweighting means for the barrier section,

22. A door comprising an upper section, an intermediate section and a barrier section below and detachably connected to the intermediate section, said intermediate and barrier sections being movable together to a position overlying said upper section, said upper and overlying sections being movable as a unit laterally and inwardly, and counterweighting means operable successively to aid in lifting the intermediate section to a position overlying the upper section and to raise and move said sections laterally to open position, said counterweighting means being connected to the intermediate section and being applied to the upper section adjacent the lower edge thereof.

23. The combination with a doorway, of, a door for said doorway including upper and lower door sections, the lower section constituting the sole closure for the lower part of the doorway and the upper section closing a portion of the doorway above that closed by the lower section when the two sections are in their lowered position, means connected to the upper section for raising and lowering the door, means for detachably connecting the lower section to the upper section for causing it to move with the upper section or permitting its being left across the doorway when the upper section is elevated, said means automatically acting to cause the sections to become coupled when brought into coacting relation, and means for counterbalancing the lower section to permit its being easily raised into coacting and coupled relation to the upper section when the latter is elevated.

24. The combination with a doorway, of a door for said doorway including upper and lower door sections, the lower section constituting the sole closure for the lower part of the doorway and the upper section closing a portion of the doorway above that closed by the lower section when the two sections are in their lowered position, means connected to the upper section for raising. and lowering the door, means for detachably connecting the lower section to the upper section for causing it to move with the upper section or permitting its being left across the doorway when the upper section is elevated, and means for counterbalancing the lower section.

25. The combination with a doorway, of a door for said doorway including upper and lower door sections, the lower section constituting the sole closure for the lower part of the doorway and the upper section closing a portion of the doorway above that closed by the lower section when the two sections are in their lowered position, means connected to the upper section for raising and lowering the door, and means for detachably connecting the lower section to the upper section for causing it to move with the upper section or permitting its being left across the doorway when the upper section is elevated.

26. A door including upper and lower door sections, struts extending downwardly from the upper section, lifting means attached to said struts, means for detachably connecting the lower section to the upper section for causing it to move with the upper section when attached thereto, or permitting it to remain in position across the doorway when detached from the upper section when the upper section is raised.

ARTHUR T. PRESCOTT. 

